3 Advanced Computer Networks BridgesRepeatersS1S2S3S4LAN1LAN2RepeaterA repeater operates at the physical layer and forwardseverything between the two LANs.LAN1 and LAN2 are in the same collision domain.Advanced Computer Networks Bridges

5 Advanced Computer Networks BridgesOperate at the data link layer.Bridges use backward learning in recording source address on transmissions.Unlike repeaters, bridges will not forward a frame onto another LAN segment if it knows about the location of the destination node.Bridge management gets more complicated when loops are possible in the frame route.Advanced Computer Networks Bridges